56393717 has 2 divisors, whose sum is σ = 56393718. Its totient is φ = 56393716.

The previous prime is 56393671. The next prime is 56393747. The reversal of 56393717 is 71739365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50566321 + 5827396 = 7111^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 56393717 - 2¹² = 56389621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56393747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28196858 + 28196859.

It is an arithmetic number, because the mean of its divisors is an integer number (28196859).

Almost surely, 2^56393717 is an apocalyptic number.

It is an amenable number.

56393717 is a deficient number, since it is larger than the sum of its proper divisors (1).

56393717 is an equidigital number, since it uses as much as digits as its factorization.

56393717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 41.

The square root of 56393717 is about 7509.5750212645. The cubic root of 56393717 is about 383.4807548079.

The spelling of 56393717 in words is "fifty-six million, three hundred ninety-three thousand, seven hundred seventeen".